docs: def list_update(self, id, title):
          """
          Update info about a list, where "info" is really the lists `title`.
          
          Returns the `list dict`_ of the modified list.
          """
          id = self.__unpack_id(id)
          params = self.__generate_params(locals(), ['id'])
          return self.__api_request('PUT', '/api/v1/lists/{0}'.format(id), params)